TECHNIQUE FOR PROVIDING UNINTERRUPTED SWITCHED DIGITAL VIDEO SERVICE
First Claim
1. A method comprising the steps of:
- receiving, from a subscriber of a video content network offering a switched digital video service, a request to establish a new switched digital video session within a service group of said video content network, said service group comprising both preferred and standard subscribers and having a plurality of existing sessions;
determining whether adequate bandwidth is available to establish said new switched digital video session without tearing down any of said existing sessions;
responsive to said determination indicating that said adequate bandwidth is not available without tearing down any of said existing sessions, tearing down at least one of said existing sessions, with those of said existing sessions corresponding to said preferred subscribers being exempted from teardown; and
establishing said new switched digital video session in accordance with said request.
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Accused Products
Abstract
A request is received from a subscriber of a video content network offering a switched digital video service. The request is to establish a new switched digital video session within a service group of the video content network. The service group includes both preferred and standard subscribers and has a plurality of existing sessions. It is determined whether adequate bandwidth is available to establish the new switched digital video session without tearing down any of the existing sessions. Responsive to the determination indicating that adequate bandwidth is not available without tearing down any of the existing sessions, at least one of the existing sessions is torn down. In this step, those of the existing sessions corresponding to the preferred subscribers are exempted from teardown. The new switched digital video session is established in accordance with the request. A switched digital video control apparatus, a set-top terminal, and a system are also disclosed.
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Citations
26 Claims
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1. A method comprising the steps of:
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receiving, from a subscriber of a video content network offering a switched digital video service, a request to establish a new switched digital video session within a service group of said video content network, said service group comprising both preferred and standard subscribers and having a plurality of existing sessions; determining whether adequate bandwidth is available to establish said new switched digital video session without tearing down any of said existing sessions; responsive to said determination indicating that said adequate bandwidth is not available without tearing down any of said existing sessions, tearing down at least one of said existing sessions, with those of said existing sessions corresponding to said preferred subscribers being exempted from teardown; and establishing said new switched digital video session in accordance with said request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A switched digital video control apparatus for use in a video content network offering a switched digital video service and having a service group comprising both preferred and standard subscribers, said apparatus comprising:
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a memory; and at least one processor, coupled to said memory, and operative to; receive, from a subscriber of said video content network, a request to establish a new switched digital video session within the service group of the video content network, the service group having a plurality of existing sessions; determine whether adequate bandwidth is available to establish the new switched digital video session without tearing down any of the existing sessions; responsive to said determination indicating that the adequate bandwidth is not available without tearing down any of the existing sessions, tear down at least one of the existing sessions, with those of the existing sessions corresponding to the preferred subscribers being exempted from teardown; and establish the switched digital video session in accordance with said request. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A set-top terminal for use in a video content network offering a switched digital video service, said set-top terminal comprising:
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a memory; and at least one processor, coupled to said memory, and operative to; receive, from a head end of said video content network, a ping message to prompt a user of said terminal to respond to the message to indicate that a current program channel is being actively watched; and responsive to receiving the ping message, automatically reply to the ping message affirmatively, without requiring any response from the user.
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25. An apparatus comprising:
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means for receiving, from a subscriber of a video content network offering a switched digital video service, a request to establish a new switched digital video session within a service group of said video content network, said service group comprising both preferred and standard subscribers and having a plurality of existing sessions; means for determining whether adequate bandwidth is available to establish said new switched digital video session without tearing down any of said existing sessions; means, responsive to said determination indicating that said adequate bandwidth is not available without tearing down any of said existing sessions, for tearing down at least one of said existing sessions, with those of said existing sessions corresponding to said preferred subscribers being exempted from teardown; and means for establishing said new switched digital video session in accordance with said request.
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26. A system comprising:
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a video content network offering a switched digital video service; a service group coupled to said video content network and having a plurality of terminals, said service group servicing both preferred and standard subscribers; and a switched digital video control apparatus coupled to said video content network, said switched digital video control apparatus, said apparatus in turn comprising; a memory; and at least one processor, coupled to said memory, and operative to; receive, from a given one of the subscribers, a request to establish a new switched digital video session within said service group, said service group having a plurality of existing sessions; determine whether adequate bandwidth is available to establish said new switched digital video session without tearing down any of said existing sessions; responsive to said determination indicating that said adequate bandwidth is not available without tearing down any of said existing sessions, tear down at least one of said existing sessions, with those of said existing sessions corresponding to said preferred subscribers being exempted from teardown; and establish said switched digital video session in accordance with said request.
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Specification